Solve the problem.A tour group split into two groups when waiting in line for food at a fast food counter. The first group bought 6 slices of pizza and 4 soft drinks for $26.54. The second group bought 5 slices of pizza and 4 soft drinks for $23.39. How much does one slice of pizza cost?

Find the equation of the parabola described.Vertex at (7, 6); focus at (7, 2)

Which vertebrae has a posterior arch?

Sample essay question.

Scientific Method, Reasoning, and Writing (Scientific Skills Focus) Choose one plant-related question addressed in this course (for example, transport, photosynthesis, growth, or reproduction). Explain how the scientific method could be used to investigate it, including: A testable question or hypothesis How evidence would be collected How conclusions would be supported through scientific reasoning and clear writing

Cellular Respiration and Energy Use (Module 5) Even though plants photosynthesize, they rely on cellular respiration. Explain how cellular respiration complements photosynthesis and why ATP—not glucose—is the direct energy source for cellular work.

Ecology and Biodiversity Define biodiversity and explain its three levels. Then, describe how keystone species and ecosystem engineers contribute to community structure and ecological stability.

Vertebrate Adaptations What are three evolutionary adaptations that allowed vertebrates to successfully transition to terrestrial life? Explain how each adaptation addressed challenges on land.

Viruses and Host Interaction Compare the lytic and lysogenic replication cycles in viruses. How might each strategy influence disease progression in the host?

The price of a ring has been reduced by 25%.  The new, reduced price is $400.  What was the original price of the ring before the 25% reduction?  Explain the solution using a percent table.